| Disna uezd | |
| Native Name: | Дисненскій уѣздъ |
| Native Name Lang: | ru |
| Settlement Type: | Uezd |
| Mapsize: | 225px |
| Subdivision Type: | Country |
| Subdivision Name: | Russian Empire |
| Subdivision Type1: | Krai |
| Subdivision Name1: | Northwestern |
| Subdivision Type2: | Governorate |
| Subdivision Name2: | Vilna |
| Established Title: | Established |
| Established Date: | 1795 |
| Extinct Title: | Abolished |
| Extinct Date: | 1920 |
| Seat Type: | Capital |
| Seat: | Disna |
| Area Total Km2: | 5,779.3 |
| Population As Of: | 1897 |
| Population Total: | 204,923 |
| Population Density Km2: | auto |
| Population Urban: | 4.14% |
| Population Rural: | 95.86% |
| Total Type: | Total |
The Disna uezd was a county (uezd) of the Vilna Governorate of the Russian Empire. The uezd was bordered by the Dvinsk uezd of the Vitebsk Governorate to the north, the Minsk uezd of the Minsk Governorate to the east, the Vileyka uezd to the south, the Sventsyany uezd to the southwest, and the Novoaleksandrovsk uezd of the Kovno Governorate. The uezd was eponymously named for its administrative center, Disna, which was belonged to present-day Dizsna in Belarus. The territory of Disna uezd corresponds to a part of the present-day Miory, Hlybokaye, Sharkawshchyna, and Pastavy districts of Vitebsk Region.
At the time of the Russian Empire Census of 1897, Disnensky Uyezd had a population of 204,923. Of these, 81.1% spoke Belarusian, 10.1% Yiddish, 5.9% Russian, 2.4% Polish, 0.3% Lithuanian, 0.1% German and 0.1% Latvian as their native language.[1]